2 Samuel 16:15-23 - Hushai Comes To Absalom
15 And Absalom, and all the people, the men of Israel, came to Jerusalem, and Ahithophel with him. 16 And it came to pass, when Hushai the Archite, David's friend, came to Absalom, that Hushai said to Absalom, Live, O king. Live, O king.
17 And Absalom said to Hushai, Is this thy kindness to thy friend? Why did thou not go with thy friend?
18 And Hushai said to Absalom, No, but whom LORD, and this people, and all the men of Israel have chosen, his will I be, and with him I will abide. 19 And again, whom should I serve? [Is it] not in the presence of his son? As I have served in thy father's presence, so I will be in thy presence.
20 Then Absalom said to Ahithophel, Give your counsel what we shall do.
21 And Ahithophel said to Absalom, Go in to thy father's concubines that he has left to keep the house, and all Israel will hear that thou are abhorred by thy father. Then the hands of all who are with thee will be strong. 22 So they spread Absalom a tent upon the top of the house, and Absalom went in to his father's concubines in the sight of all Israel.
23 And the counsel of Ahithophel, which he gave in those days, was as if a man inquired at the oracle of God; so was all the counsel of Ahithophel both with David and with Absalom.